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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1990-6-26
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pubmed:abstractText |
Antibodies to acetylcholine receptor (AChR) were measured in a group of patients with myasthenia gravis (MG), some of whom had previously been classified as 'antibody negative' using the standard anti-AChR radioimmunoassay (RIA). AChR antibodies were measured using the rosetting assay, a new detection method which utilizes protein A-coated red blood cells and live BC3H-1 cells, a murine cell line which expresses muscle nicotinic AChR. The results of the rosetting assay were compared with those obtained in the anti-AChR RIA. 76% of all myasthenic sera tested showed rosetting at titers higher than any of the control sera (from patients with non-myasthenic neurologic disease and normal individuals). Of the myasthenic patients previously classified as 'antibody negative' in the RIA using human AChR, 71% demonstrated positive rosetting. There was no correlation between the anti-AChR antibody titer obtained in the rosetting assay and that obtained in the RIA using either human or denervated rat AChR. The results suggest that the rosetting assay may measure a subpopulation of antibodies that differs from those detected in the RIA.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Jun
|
pubmed:issn |
0165-5728
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pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
28
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
83-93
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:2341562-Animals,
pubmed-meshheading:2341562-Autoantibodies,
pubmed-meshheading:2341562-Bungarotoxins,
pubmed-meshheading:2341562-Cell Line,
pubmed-meshheading:2341562-Humans,
pubmed-meshheading:2341562-Myasthenia Gravis,
pubmed-meshheading:2341562-Radioimmunoassay,
pubmed-meshheading:2341562-Receptors, Cholinergic,
pubmed-meshheading:2341562-Rosette Formation,
pubmed-meshheading:2341562-Staphylococcal Protein A
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pubmed:year |
1990
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pubmed:articleTitle |
A sensitive rosetting assay for detection of acetylcholine receptor antibodies using BC3H-1 cells: positive results in 'antibody-negative' myasthenia gravis.
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pubmed:affiliation |
Department of Internal Medicine, Yale University School of Medicine, New Haven, CT.
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pubmed:publicationType |
Journal Article,
Comparative Study,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
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